Re: relative traffic snapshots

Dorian Kim <dorian@cic.net> Fri, 09 February 1996 11:18 UTC

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From: Dorian Kim <dorian@cic.net>
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To: Sean Doran <smd@chops.icp.net>, big-internet@munnari.oz.au
Subject: Re: relative traffic snapshots
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On Thu, 8 Feb 1996, Dorian Kim wrote:

> For those who are interested, here's some comparison data from CICNet. I 
> turned on flow switching on our 7513s, for much the same reasons Sean 
> did. This is from dgc.cic.net, one of our Chicago hub routers. It has 
> moderate amount of traffic passing through it, about 20mbps over its FDDI 
> at peak time.

And for the sake of comparsion, here's data from the other 7513, 
dgb.cic.net. 

IP Flow Switching Cache, 12059 active flows, 4325 inactive
  39944369 added, 37686959 replaced, 1311271 timed out, 934080 invalidated
  statistics cleared 82750 seconds ago

Protocol         Total  Flows   Packets Bytes  Packets Active(Sec) Idle(Sec)
--------         Flows   /Sec     /Flow  /Pkt     /Sec     /Flow     /Flow
TCP-Telnet     1415521   17.1        51    88    884.3      39.3      19.2
TCP-FTP         575464    6.9         6    87     46.4       8.2      24.2
TCP-FTPD        388578    4.6        90   381    427.0      22.5      24.1
TCP-WWW       25740805  311.0         9   311   3025.6       5.5      22.6
TCP-SMTP       4141938   50.0         8   187    449.6       6.5      23.4
TCP-X            15112    0.1       138   205     25.2      31.4      19.2
TCP-other      4957906   59.9        44   278   2642.3      26.0      22.9
UDP-TFTP            73    0.0         1   393      0.0       1.8      21.5
UDP-other      1634987   19.7         9   208    185.1      10.0      26.7
ICMP           1039015   12.5         4    85     59.0       6.9      27.5
IGMP             12833    0.1        32   405      4.9      51.4      29.6
IPINIP            1972    0.0      2403   273     57.2     219.0      21.5
GRE               7306    0.0       325   364     28.7      64.1      21.9
IP-other           800    0.0         2   113      0.0      17.2      21.1
Total:        39932310  482.5        16   259   7835.8       0.0       0.0

-dorian
______________________________________________________________________________
 Dorian Kim 		  Email: dorian@cic.net		2901 Hubbard Drive
 Network Engineer 	  Phone: (313)998-6976		Ann Arbor MI 48105
 CICNet Network Systems	  Fax:   (313)998-6105      http://www.cic.net/~dorian